Über Glykoproteideinschlüsse in den Trophoblastzellen der menschlichen Plazenta und die Frage ihres Zusammenhangs mit der Bildung von Gonadotropin
Zeitschrift für Zellforschung und Mikroskopische Anatomie, ISSN: 0302-766X, Vol: 61, Issue: 1, Page: 145-158
1963
- 16Citations
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Metrics Details
- Citations16
- Citation Indexes16
- CrossRef16
Article Description
In some of the basophilic trophoblastic cells of the basal plate and islands of the mature human placenta there are glycoprotein inclusions, many of which are within vacuoles. As established by the histochemical results these inclusions are composed of a neutral mucopolysaccharide and a basophilic protein with SH groups. They gradually increase in number from the 4th month of pregnancy and are not influenced by labor. From the first to the fourth month of gestation small vacuoles, initially infra-nuclear but later supranuclear, may be seen in the syncitial cells of the villi; these likewise contain glycoprotein granules. The same inclusions are to be found in some trophoblastic cells of the chorionic plate and of the chorion laeve, and in an occasional epithelial cell of the amnion. On the basis of the histochemical behavior of these inclusions, their similarity with the δ-granules of the hypophysis, and the obvious high activity of the trophoblastic cells which bear them, it is postulated that these inclusions contain gonadotropin. Their occurrence during pregnancy parallels the biochemical concentration and immunofluorescent histological demonstration of gonadotropin in the placenta. Thus, at the end of pregnancy the basal trophoblastic cells of the human placenta appear to form at least two different hormones: relaxin, probably represented morphologically by the acidophilic protein inclusions (described elsewhere), and gonadotropin most likely represented by the basophilic glycoprotein inclusions. © 1963 Springer-Verlag.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=34347172626&origin=inward; http://dx.doi.org/10.1007/bf00341525; http://link.springer.com/10.1007/BF00341525; http://www.springerlink.com/index/pdf/10.1007/BF00341525; http://www.springerlink.com/index/10.1007/BF00341525; https://dx.doi.org/10.1007/bf00341525; https://link.springer.com/article/10.1007/BF00341525
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